A double-barrel dispenser

Abstract

The present invention proposes a double-barrel dispenser, comprising a first main channel and a second main channel, wherein one end of the first main channel and the second main channel are connected to a main water inlet of an input liquid flow, the other end of the first main channel has a first water outlet, and the other end of the second main channel has a second water outlet, the first main channel and the second main channel are respectively provided with a first venturi tube and a second venturi tube, the bypasses of the first main channel and the second main channel are both connected to a reflux channel, the inlet of the reflux channel is connected to the outlet of the first venturi tube and the second venturi tube, the outlet of the reflux channel is connected to the negative pressure port of the first venturi tube and the second venturi tube, the reflux channel is sequentially connected with a first double switching valve and a liquid exchange chamber along the liquid reflux direction, the first double switching valve is connected with a liquid storage box A, and the double-barrel delivery of liquid preparations can be realized, and the structure is simple, the volume is small, and the delivery accuracy is high.

Description

[Technical field]

[0001] The invention relates to the technical field of liquid preparation delivery, in particular to a double-barrel delivery device. [Background technology]

[0002] In the past, the method of adding liquid detergent (or softener, softener, bactericidal liquid, etc.) to electric washing machines, electric dishwashers, and other electric washing equipment that use liquid detergents is that the user stores the liquid detergent to be put in a designated container in advance, and the washing equipment flushes the detergent into the washing barrel by water flushing or other mechanical methods according to the washing process. In this method, the amount of detergent put in depends on the user's random operation, and detergent needs to be added to the container during each washing process. With the continuous improvement of the liquidization of detergents, it is an application trend to store a large amount of detergent in the washing equipment at one time, so that the user can put a certain amount of detergent in it as needed during the washing process. This can not only reduce the user's operating troubles, but also automatically adjust the amount of detergent put in according to the type and amount of the laundry. Therefore, it is a development direction to configure an automatic detergent dispensing device on the washing equipment.

[0003] Patent document with application number CN201258409Y discloses a device for generating negative pressure by water flow, which generates negative pressure by tap water flow. The magnitude of negative pressure is closely related to tap water pressure and flow rate. Therefore, when the water inlet of the electromagnetic valve in the washing equipment is directly used to generate negative pressure, the fluctuation range of the generated negative pressure will be very large, and the precision of detergent delivery is difficult to control. Patent document with application number CN201310358805.9 discloses a detergent delivery controller, which has a main channel, one end of which is the inlet of the input liquid flow, and the other end of which is the outlet that can be connected to the water inlet of the washing bucket. The bypass of the main channel is connected to the liquid collecting chamber, the valve, and the liquid storage tank. The main channel is connected to the venturi negative pressure generator, and the outlet of the liquid collecting chamber is connected to the negative pressure port of the venturi negative pressure generator on the main channel through the reflux channel. The delivery device has a simple structure, a small size, is easy to install and use, and the detergent in the equipment is not easy to remain. The delivery precision is high, which can solve the problem of the above delivery precision being difficult to control.

[0004] However, the detergent dispensing controller disclosed in the above patent still has certain limitations, and can only dispense liquid preparations in a single drum. There are a large number of double-drum washing machines in the prior art. This type of washing machine can classify and wash clothes and is very popular among the public. When liquid preparations (or softeners, detergents, etc.) are dispensed and used, it is necessary to dispense liquid preparations into two drums independently according to needs. The solution provided by the above patent cannot be used for double-drum dispensing and cannot be adapted to double-drum washing machines. Now a double-drum dispenser is proposed. [Summary of the invention]

[0005] The purpose of the present invention is to solve the problems in the prior art and to provide a double-barrel dispenser that can achieve double-barrel delivery of liquid preparations and has a simple structure, small size and high delivery accuracy.

[0006] To achieve the above-mentioned purpose, the present invention proposes a double-barrel dispenser, comprising a first main channel and a second main channel, wherein one end of the first main channel and the second main channel are connected to a main water inlet of an input liquid flow, the other end of the first main channel has a first water outlet connected to a water inlet of a barrel A, and the other end of the second main channel has a second water outlet connected to a water inlet of another barrel B, the first main channel and the second main channel are respectively provided with a first venturi tube and a second venturi tube, the bypasses of the first main channel and the second main channel are both connected to a reflux channel, the inlet of the reflux channel is connected to the outlet of the first venturi tube and the second venturi tube, the outlet of the reflux channel is connected to the negative pressure ports of the first venturi tube and the second venturi tube, the reflux channel is sequentially connected with a first double switching valve and a liquid exchange chamber along the liquid reflux direction, and the inlet of the first double switching valve is connected with a liquid storage box A.

[0007] Preferably, the negative pressure ports of the first venturi tube and the second venturi tube are connected to the first one-way valve and the second one-way valve, respectively; the inlets of the first one-way valve and the second one-way valve are connected to the outlet of the liquid exchange chamber; the inlet of the liquid exchange chamber is connected to the outlet of the first double switching valve; the reflux channel is also connected to the second double switching valve; one of the inlets of the first double switching valve is connected to the liquid storage box A; the other inlet of the first double switching valve is connected to the outlet of the second double switching valve; and the two inlets of the second double switching valve are connected to the outlets of the first venturi tube and the second venturi tube, respectively.

[0008] Preferably, a first water inlet valve is also provided on the first main channel, the inlet of the first water inlet valve is connected to the main water inlet, the outlet of the first water inlet valve is connected to the inlet of the first venturi tube, the outlet of the first venturi tube is connected to the first water outlet, the first venturi tube is connected to the reflux channel through the first one-way valve, and the negative pressure port of the first venturi tube is connected to the outlet of the first one-way valve.

[0009] Preferably, a second water inlet valve is further provided on the second main channel, the inlet of the second water inlet valve is connected to the main water inlet, the outlet of the second water inlet valve is connected to the inlet of the second venturi tube, the outlet of the second venturi tube is connected to the second water outlet, the second venturi tube is connected to the reflux channel through the second one-way valve, and the negative pressure port of the second venturi tube is connected to the outlet of the second one-way valve.

[0010] Preferably, a flow sensor is connected to the reflux channel, an inlet of the flow sensor is connected to an outlet of the liquid exchange chamber, and an outlet of the flow sensor is connected to inlets of the first one-way valve and the second one-way valve.

[0011] Preferably, the first main channel and the second main channel respectively have a first water inlet and a second water inlet connected to a main water inlet for inputting liquid flow.

[0012] Preferably, a third double switching valve is also connected to the reflux channel, one of the inlets of the third double switching valve is connected to the liquid storage box B, the other inlet of the third double switching valve is connected to the outlet of the second double switching valve, and the outlet of the third double switching valve is connected to the inlet of the liquid exchange chamber.

[0013] Beneficial effects of the present invention: Two main channels are arranged in the double-barrel dispenser of the present invention, and the two main channels share a reflux channel. The liquid preparation in the liquid storage box can be sucked into the reflux channel by means of the Venturi tube on the main channel, and the liquid preparation can be discharged from the two main channels into the two barrels respectively, thereby realizing the double-barrel delivery of the liquid preparation. The flow sensor installed on the reflux channel can accurately measure the delivery amount of the liquid preparation to ensure accurate delivery.

[0014] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of embodiment 1 of a double-tube dispenser of the present invention;

[0016] Figure 2 It is a schematic diagram of Embodiment 2 of a double-tube dispenser of the present invention;

[0017] Figure 3 It is a front view of a second embodiment of a double-barrel dispenser of the present invention;

[0018] Figure 4 yes Figure 3 Schematic cross-sectional view of ;

[0019] Figure 5 It is a rear view of Embodiment 2 of a double-barrel dispenser of the present invention;

[0020] Figure 6 yes Figure 5 AA section diagram of ;

[0021] Figure 7 yes Figure 5 Schematic cross-sectional view of the first dual switching valve and the second dual switching valve. [Specific implementation method]

[0022] Example 1

[0023] See also Figure 1 The present invention discloses a double-barrel dispenser, comprising a first main channel 101 and a second main channel 102. One end of the first main channel 101 and the second main channel 102 are connected to a main water inlet 103 for inputting a liquid flow. The other end of the first main channel 101 has a first water outlet 104 connected to a water inlet of a barrel A. The other end of the second main channel 102 has a second water outlet 105 connected to a water inlet of another barrel B. The first main channel 101 and the second main channel 102 are respectively provided with a first venturi. The first main channel 101 and the second main channel 102 are connected to the bypass of the reflux channel 106, the inlet of the reflux channel 106 is connected to the outlet of the first venturi tube 3 and the second venturi tube 6, the outlet of the reflux channel 106 is connected to the negative pressure port of the first venturi tube 3 and the second venturi tube 6, the reflux channel 106 is connected with the first double switching valve 11 and the liquid exchange chamber 9 in sequence along the liquid reflux direction, and the inlet of the first double switching valve 11 is connected with the liquid storage box A12.

[0024] Further, the negative pressure ports of the first venturi tube 3 and the second venturi tube 6 are connected to the first check valve 4 and the second check valve 7 respectively, the inlets of the first check valve 4 and the second check valve 7 are connected to the outlet of the liquid exchange chamber 9, the inlet of the liquid exchange chamber 9 is connected to the outlet of the first double switching valve 11, the reflux channel 106 is also connected to the second double switching valve 10, one of the inlets of the first double switching valve 11 is connected to the liquid storage box A12, the other inlet of the first double switching valve 11 is connected to the outlet of the second double switching valve 10, and the two inlets of the second double switching valve 10 are connected to the outlets of the first venturi tube 3 and the second venturi tube 6 respectively. The setting of the check valve can prevent backflow at the negative pressure port of the venturi tube.

[0025] Furthermore, the first main channel 101 is provided with a first water inlet valve 2, the inlet of the first water inlet valve 2 is connected to the main water inlet 103, the outlet of the first water inlet valve 2 is connected to the inlet of the first venturi tube 3, the outlet of the first venturi tube 3 is connected to the first water outlet 104, the first venturi tube 3 is connected to the reflux channel 106 through the first check valve 4, and the negative pressure port of the first venturi tube 3 is connected to the outlet of the first check valve 4. The second main channel 102 is also provided with a second water inlet valve 5, the inlet of the second water inlet valve 5 is connected to the main water inlet 103, the outlet of the second water inlet valve 5 is connected to the inlet of the second venturi tube 6, the outlet of the second venturi tube 6 is connected to the second water outlet 105, the second venturi tube 6 is connected to the reflux channel 106 through the second check valve 7, and the negative pressure port of the second venturi tube 6 is connected to the outlet of the second check valve 7.

[0026] Furthermore, a flow sensor 8 is connected to the reflux channel 106, the inlet of the flow sensor 8 is connected to the outlet of the liquid exchange chamber 9, and the outlet of the flow sensor 8 is connected to the inlets of the first one-way valve 4 and the second one-way valve 7. The flow sensor 8 is provided to more accurately measure the amount of liquid preparation administered.

[0027] Further, see Figure 3 The first main channel 101 and the second main channel 102 respectively have a first water inlet 1031 and a second water inlet 1032 connected to the main water inlet 103 for inputting liquid flow.

[0028] Example 2

[0029] See also Figure 2-Figure 7 , which is different from Example 1 in that a third double switching valve 13 is further connected to the reflux channel 106, one of the inlets of the third double switching valve 13 is connected to the liquid storage box B14, the other inlet of the third double switching valve 13 is connected to the outlet of the second double switching valve 10, and the outlet of the third double switching valve 13 is connected to the inlet of the liquid exchange chamber 9. In this embodiment, the liquid preparations in the liquid storage box A and the liquid storage box B can be put in at the same time, or only the liquid preparations in the liquid storage box A and the liquid storage box B can be put in. Of course, the number of liquid storage boxes equipped with double switching valves is not limited to two, and three or four liquid storage boxes can also be set, which has a wider range of applications.

[0030] Working process of the present invention:

[0031] Taking Example 1 as an example, the working process of dispensing liquid to cylinder A in the double-cylinder dispenser is as follows:

[0032] During the water source input process, the first water inlet valve 2 is opened first, and then the inlet of the second double switching valve 10 connected to the first venturi tube 3 and its outlet are opened, and at the same time, the inlet of the first double switching valve 11 connected to the second double switching valve 10 and its outlet are opened to allow a small amount of diverted water from the water source to enter the reflux channel 106, flow through the second double switching valve 10, the first double switching valve 11, and the liquid exchange chamber 9 in turn, and mix with the incoming water flow through the negative pressure port of the first venturi tube 3, and input into the cylinder A together with the incoming water flow. The water flow of this diverter loop is used to flush the liquid collecting chamber and related flow paths to avoid the use of the dispenser affected by the solidification of detergent residues. After flushing is completed, open an inlet of the first double switching valve 11 connected to the liquid storage box A12, and close the other inlet of the first double switching valve 11. Under the action of the negative pressure of the first venturi tube 3, the liquid preparation in the liquid storage box A12 enters the liquid exchange chamber 9 from the outlet of the first double switching valve 11, mixes with the previously input flushing water, and is measured by the flow sensor 8. After reaching the preset release value, close the inlet of the first double switching valve 11 connected to the liquid storage box A12, open the other inlet of the first double switching valve 11, and perform the flushing operation again. The liquid in the reflux channel 106 can be mixed with the incoming water flow and input into the cylinder A through the first main channel 101, thereby realizing the release of the liquid preparation in the liquid storage box A.

[0033] The working principle of dosing liquid into cylinder B is the same as the working principle of dosing liquid into cylinder A described above.

[0034] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A double-barrel dispenser, characterized in that: The invention comprises a first main channel (101) and a second main channel (102), wherein one end of the first main channel (101) and the second main channel (102) are connected to a main water inlet (103) for inputting a liquid flow, the other end of the first main channel (101) has a first water outlet (104) connected to a water inlet of a cylinder A, and the other end of the second main channel (102) has a second water outlet (105) connected to a water inlet of another cylinder B, the first main channel (101) and the second main channel (102) are respectively provided with a first venturi tube (3) and a second venturi tube (6), the bypass of the first main channel (101) and the second main channel (102) are both connected to a reflux channel (106), the inlet of the reflux channel (106) is connected to the outlet of the first venturi tube (3) and the second venturi tube (6), the outlet of the reflux channel (106) is connected to the negative pressure outlet of the first venturi tube (3) and the second venturi tube (6), and the The reflux channel (106) is connected in sequence with a first double switching valve (11) and a liquid exchange chamber (9) along the liquid reflux direction, and the inlet of the first double switching valve (11) is connected with a liquid storage box A (12); the negative pressure ports of the first venturi tube (3) and the second venturi tube (6) are respectively connected with a first check valve (4) and a second check valve (7); the inlets of the first check valve (4) and the second check valve (7) are connected with the outlet of the liquid exchange chamber (9); the inlet of the liquid exchange chamber (9) is connected with the outlet of the first double switching valve (11); the reflux channel (106) is also connected with a second double switching valve (10); one of the inlets of the first double switching valve (11) is connected with the liquid storage box A (12); the other inlet of the first double switching valve (11) is connected with the outlet of the second double switching valve (10); and the two inlets of the second double switching valve (10) are respectively connected with the outlets of the first venturi tube (3) and the second venturi tube (6).

2. A double-barrel dispenser as claimed in claim 1, characterized in that: The first main channel (101) is also provided with a first water inlet valve (2); the inlet of the first water inlet valve (2) is connected to the main water inlet (103); the outlet of the first water inlet valve (2) is connected to the inlet of the first venturi tube (3); the outlet of the first venturi tube (3) is connected to the first water outlet (104); the first venturi tube (3) is connected to the reflux channel (106) via the first one-way valve (4); and the negative pressure port of the first venturi tube (3) is connected to the outlet of the first one-way valve (4).

3. A double-barrel dispenser as claimed in claim 1, characterized in that: The second main channel (102) is also provided with a second water inlet valve (5); the inlet of the second water inlet valve (5) is connected to the main water inlet (103); the outlet of the second water inlet valve (5) is connected to the inlet of the second venturi tube (6); the outlet of the second venturi tube (6) is connected to the second water outlet (105); the second venturi tube (6) is connected to the reflux channel (106) via a second one-way valve (7); and the negative pressure port of the second venturi tube (6) is connected to the outlet of the second one-way valve (7).

4. A double-barrel dispenser as claimed in claim 1, characterized in that: The reflux channel (106) is connected to a flow sensor (8), the inlet of the flow sensor (8) is connected to the outlet of the liquid exchange chamber (9), and the outlet of the flow sensor (8) is connected to the inlets of the first one-way valve (4) and the second one-way valve (7).

5. A double-barrel dispenser as claimed in claim 1, characterized in that: The first main channel (101) and the second main channel (102) respectively have a first water inlet (1031) and a second water inlet (1032) which are connected to a main water inlet (103) for inputting liquid flow.

6. A double-tube dispenser according to any one of claims 1 to 5, characterized in that: The reflux channel (106) is also connected to a third double switching valve (13), one of the inlets of the third double switching valve (13) is connected to the liquid storage box B (14), the other inlet of the third double switching valve (13) is connected to the outlet of the second double switching valve (10), and the outlet of the third double switching valve (13) is connected to the inlet of the liquid exchange chamber (9).

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